TEMPERATURE DISTRIBUTION WITHIN ASPHALT PAVEMENTS AND ITS RELATIONSHIP TO PAVEMENT DEFLECTION

A METHOD HAS BEEN DEVELOPED TO ESTIMATE THE TEMPERATURES AT DEPTH IN AN ASPHALTIC CONCRETE PAVEMENT UTILIZING THE MEASURED SURFACE TEMPERATURE AND THE 5-DAY AVERAGE AIR TEMPERATURE HISTORY. TEMPERATURE PREDICTION NOMOGRAPHS WERE DEVELOPED FOR EACH HOUR BETWEEN 6 A.M. AND 5 P.M. THIS TEMPERATURE PREDICTION METHOD IS INDEPENDENT OF THE SEASON OF THE YEAR. A METHOD FOR ADJUSTING BENKELMAN BEAM DEFLECTIONS FOR TEMPERATURE EFFECTS HAS BEEN DEVELOPED AND IS PRESENTED. THIS ENABLES THE DEFLECTIONS TAKEN AT ANY TEMPERATURE TO BE ADJUSTED TO A REFERENCE TEMPERATURE, THUS MAKING POSSIBLE DIRECT COMPARISONS OF DEFLECTIONS. AN ANALYSIS OF AASHO ROAD TEST DATA WAS MADE USING THE BOUSSINESQ AND BURMISTER EQUATIONS AND CHARTS. THE RESULTS INDICATE THAT THE TEMPERATURE-MODULUS OF ELASTICITY RELATIONSHIP IS CURVILINEAR, HAS THE SAME BASIC SHAPES AS THE TEMPERATURE-DEFLECTION ADJUSTMENT FACTOR CURVE. THERE APPEARS TO BE A LINEAR RELATIONSHIP BETWEEN DEFLECTIONS ADJUSTMENT FACTORS AND MODULUS OF ELASTICITY. THEREFORE, THERE SEEMS TO BE A TEMPERATURE-DEFLECTION-MODULUS OF ELASTICITY CORRELATION BETWEEN FIELD TEST DATA AND THEORY. /AUTHOR/

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/hrr/1969/291/291-009.pdf
• Supplemental Notes:
  • Paper sponsored by Committee on Flexible Pavement Design and presented at the 48th Annual Meeting.Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Southgate, Herbert F
  • Deen, Robert C
• Discussers:
  • Vaswani, N K
  • Kingham, R Ian
• Publication Date: 1969

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 116-131
• Monograph Title: Design, evaluation, and performance of pavement systems
• Serial:
  • Highway Research Record
  • Issue Number: 291
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Asphalt concrete; Benkelman beam; Deflection tests; Estimating; Modulus of elasticity; Temperature
• Identifier Terms: AASHO Road Test
• Uncontrolled Terms: Temperature distribution
• Old TRIS Terms: Test results
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00207057
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Mar 9 1970 12:00AM